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(No Model.) A. W. STEELMANfiz W. ELMAYNARD.

, WHEEL OULTIYATOR. No. 272,915. Patented Pe b.2'7.18 83.

N. PETERS. Ppawmw nwr. waning. D. c

UNITED STATES PATENT OFFICE.

ALBERT W. STEELMA N AND WILLIAM H. MAYNARD, OF KALAMAZOO, MICE.

WHEEL-CULTIVA'l'OR.

SPECIFICATION forming part of Letters Patent No. 272,915, dated February27, 1883.

Application filed September 3, 1881. (No model.)

To all whom it may concern:

Be it known that we, ALBERT W. STEEL- Michigan, have invented a new anduseful Improvement in Wheel-Cultivators, of which the following is aspecification. v

Our invention relates to such devices which are used both for harrowingland and for cultivating corn.

It has for its object improvements intlie construction and combinationof certain parts set forth in the following description.

In the drawings forming a part of this specification, Figure l is a sideelevation Fig. 2, top view of Fig, 1, with one side broken away; Fig. 3,detached top View of corn devices; Fig. 4, a spring detached, and Fig.5. a rear view of Fig. 3.

KK are share-beams hinged to a rod at their forward end, as in formerdevices. Bar N, with which the liftingrlever S and springs O O areconnected, is beveled on its under rear face, and it is hinged to thewheel-frame at its forward edge, all in a manner to effect the followingresult: The independent sharebeams K, connecting with the bar N by meansof the springs 0, have an elastic effect imparted to them in theirvertical movement, as in other constructions; butit will be observedthat the springs are secured to the under beveled side of bar N in sucha manner and location that when the lever S, connecting with bar N bymeans of link R, is carried forward to raise beams K a leverage purchaseis exerted on springs O, contracting instead of expanding them, whichbrings a more immediate efi'ect on said share-beams, with but a slightmovement of the lever S; also, when lever S is thrown back, instead ofthe springs 0 being contracted to stiffen them, when desiring a greaterpressure on the share-beams, they are rolled under, bringing theendsbearing the loops 1? nearer a point under bar N, where they would becontracted by any undue raising of the share-beams when the teeth L camein contact with harder soil. This is far more desirable than acontraction of the spring by means of the lever S, as less exertion isrequired and less distance in the move ment of said lever.-

Under the forward end of the frame 0, at the center, is located the corndevice, designed for dressing each side of the hill when the cultivatoris used for corn, and to harrow the space left by leaving out the othersharebeams in the rear of it. The beams o 'v are provided with castingsa: 01;, having semicircular slots, in which pivots a a are located, insecuring them to the draft-beam y, in a manner that they may be swunglaterally nearthe row of corn by means of the foot-treadles a a. Whenused for corn the teeth of beams K K harrow the soil between the rows.The advantage of thus pivoting beams 'v v is that the draft-power exertsa like purchase on each side of casting x.

c c are arms secured to the rocking bar 6. One of said arms extendsupward, and is pivotally connected with bar d, and the other arm extendsrearwardly, and is pivotally connected with rod b. The lower end ofrod 1) is provided with a loop, in which rod to is located. The rear endof bar d is pivoted to lever S.

R is a lever-bar, pivotally connecting the beam N. By this arrangementthe corn device and the share-beams may be both controlled in unison bymeans of the lifting-1e ver S.

The beams 12 'v' are connected by a bar, it, and said bar, which alsoconnects with supporting-bar b, plays freely in the looped end of saidbar I). The device is supported in a manner to be thrown from side toside by the pivoted foot-levers a a, and as said foot-levers aredisconnected'from the corn device, said device acts entirely independentof them when they are not used.

Having thus described our device, what we claim is- 1. In a wheel harrowor cultivator, the combination, substantially as described, of thehinged spring supporting-bar, having Its under rear face beveled, theindependentlyhinged share-beams, a lifting-lever, and the pivotallyconnecting lever-bar, with curved lifting-lever S with the springsupportingsprings connecting said spring supporting-bar bar, and adaptedto operate as set forth, and 10 and share-beams, and adapted cooperateas a lifting-lever, all in combination, substanset forth. tially asdescribed.

2. In a wheel barrow 0r cultivator, the ALBERT K STEELMAN 5 sprinsupporting-bar hin ed to the wheel- I frame and having its unde nrearface beveled, \VILLIAM MAYNARD independently-hinged share-beams providedXVitnesses: with teeth or shares, curved springs connect- 0. S. DAYTON,ing said share-beams and spring supporting (J. A. PEOK.

